Improvement in harvester-rakes



2 Sheets-Sheet 1.

T. MURPHY.

Harvester-Rakes.

Patented August 26, 1873..

Z2@ e P196 Si @iwf UNITE I THOMAS MURPHY, OF PINE BLUFFS, VVISGONSIN.

IMPRVEMENT IN l-IAR'VES'IER-RAKES.`

Specication forming part of Letters Patent No. `l4l2,l'7l, dated August26, 1873; application filed June 3, 1873.

Tof all whom it may concern:

Be it known that I, THOMAS MURPHY, of-

Pine Bluffs, in the county of Dane and State of Wisconsin, have inventedcertain new and useful Improvements in Reaper Attachments; and I dohereby declare the following to be a full, clear, and exact descriptionthereof, reference-'being had to the accompanying drawings and to theletters of vreference markedv specification, and in which- Figure 1 is aperspective viewV of my reaper attachment 5 and Figs. 2, 3, and 4 showdetached parts of the same.

In the accompanying drawing I have not deemed it necessary to show anypart of a reaper, as I do not claim anything new in such,

but merely in a selfraking and dropping attachment for any reaper.

A represents the frame of my attachment, in which is a platform,B,having a series of longitudinal slats, a a, on its upper side. The grainfalls crosswise on the slats a a, and is by the rake moved to the innerend of the platform, where is arranged a tilting gate, C, to drop thegrain onto they ground. D represents a bevel cog-wheel, to be attachedto the driving-wheel, or to the axle of the drivin g-wheel, ofthereaper. This bevel cog-wheel gears with a bevelpinion, b, on thefront end of a shaft, E. Onthe rear end of this shaft is placed a loosepulley, G, having ratchet-teeth e e formed in its outer end, and pressedby a spring, d, against pins f projecting from the end of the shaft E.The spring d surrounds the shaft E for a suitable distance on the frontside of the pulley G, and holds the same against the pins f, so that,when the reaper moves forward, said pins will engage with theratchetteeth e e and thus revolve the pulley, While when the machinebacks the shaft can turn without causing the pulley to turn backward.The hub of the pulley G projects on thc front side, and this projectingpart of the hub is grooved circumferentially, and a lever, H, pivoted tothe frame-work A, is forked or slotted and works in said groove. Theupper end of the lever H should have a rod or cord attached to it so asto be operated by the drivervfor the purpose of moving the pulley Gforwardon theshaft and thus throw the machine out of gear. The pulley Gis, ou its circumference, at regular intervals, provided with teeth orprojection to catch in an endless chain, I, which passes around saidpulley and around a similar toothed pulley, G on a shaft, E', therebycommunicating motion to the same. By substituting a different-sizedpulley for the pulley G the speed of the shaft E is regulated, and asthis shaft operates the rake the size of the bundles is accordingly madelarger or smaller, as desired. The chain I is made taut under `allcircumstances by means of an idle-pulley, J, mounted in a frame, K,having a screw-rod, h, passing through a bar of the frame-work A, with athumb-nut, t', screwed on the same, to move the pulley J out or in, asoccasion may require. Upon each end of the shaft G1 is a bevel pinion orcog-wheel, L, and these gear with cogged pulleys G2 G2, arranged each inthe inner end of a frame, M. These two frames run parallel with eachother and with the slats a a of the platform B,\and in the outer end ofeach frame M is another pulley, G3. This latter pulley has itsjournalbearings in sliding or movable pieces m,which are adjusted out orin by means of a screw, n, for the purpose of correspondingly moving thepulley and thereby keeping taut an endless chain, I', which is placedaround the pulleys G2 G3. All of the pulleys G24 G3 are provided withteeth to catch in the endless chains, as shown in Fig. l. To each of theendless chains I I is attached a vertical bar, the one on the chainnearest to the platform being marked N and the other N and these barsare at their upper ends provided with screw-rods k 7c', respectively,which rods extend upward, as shown. On the rod 7c is placed a head, O,from which a rod, P, extends to the rod k', with a collar on the rod Pfitting loosely on said rod la. In the head O is pivoted the rake R,constructed, as shown, with an inclined arm or brace, R, on top. Fromthe upper inner end of this brace R a rod, p, extends to and connects,by a ball-and-socket joint at s, with a` crank, S, which is firmlysecured upon the upper end of the rod 7c.

It will be seen that when the machine is in motion and the bars NN movefrom the outer to the inner ends of their respective frames M M the rakeis down, with the teeth thereof between the slats a a on the platform B,and beow them, moving the grain with perfect ease onto the gate G, and,as the bars N turn the inner ends of the frames M, the crank S makesone-half of a revolution, raising the rake into the position shown inFig. l. In this position the raketravels to the outer end oftheplatform, when it is let down by the crank S making another halfrevolution as the bars N turn around the outer ends of the frames M.

Through the head O is a pin or arm, t,which, as the bar N passes aroundthe inner endof its frame M, strikes a hinged lever or frame, T, anddraws the same back, and, when the arm t clears this lever or frame, aspring, throws the same into its original position. This lever or frameT is, by a rod, y, connected with a pin, z, in the gate C, so that, bythe backward movement of the frame T, the gate will be tilted and dropthe grain which has just been drawn onto the same by the rake R; andwhen the lever or frame T is thrown forward by the spring a: the gate isbrought back to its original position as a part of the platform B.

The connection between the rod y and lever or frameT is made adjustable,as shown, so as to easily regulate the extent of the movement of thegate C. I

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

I. The rake It, pivoted in the head O and raised and lowered by theintermittently-revolving crank S, connected by a rod, p, with the arm Rof the rake, as and for the purposes set forth.

2. The endless chains I I', carrying the bars N N, in combination withthe head O, rod P, and crank S, for the purposes herein set forth.

3. The combination of the platform B, tilting gate C, rake R, endlesschains I I', bars N N', head O, rod l?, and crank S, all constructed andarranged to operate substantially as and for the purposes herein setforth.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 16th day of May, 1873.

THOMAS MURPHY. [L s] In presence of- RoBER'r BURNS, HENRY WENKEL.

